Novi2000 on 383 HSR or 383 LT1
10-27-2012, 07:30 PM
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Car: 87 monte aerocoupe
Engine: 383 HSR w/ novi 2000
Transmission: Built 4l80e circle d converter
Axle/Gears: Currie 9" 3.89 gears
Novi2000 on 383 HSR or 383 LT1
I need some advise because I am really torn as to what to build. I bought a custom novi from fstfbdy for either a tpi or lt1. My HSR has dart heads, roller conversion, and c950 ecu. The LT1 I have is stock and I have both aluminum and iron heads I can use for it. Both motors would need a forged lower end with around 9.1 compression for the blower. I also have a 5.3 harness, coils, and sensors that I could modify to work with either motor using eficonnection pieces to operate a ls1 ecu. I can tune the c950 pretty good, but I know I can do better with the ls1 ecu and hptuners. If I build the LT1, I will definitely do the 24X, not so sure about the HSR yet. Here is a list of the possible combos I would do.
1- My current motor with forged lower end and c950 ecu
2- My current top end and cam(242/248), but a roller block with 24X conversion because of the timing cover.
3- 383 LT1 with mild port work on either heads and 24X conversion.
4- Something I am missing?
My power goal would be 500-550 rwhp at about 6000 rpm with a fmic and maybe WM injection. Cost wise, the LT1 would be more up front to build, but I could part out my current motor to offset most, if not all of the cost. I just am unsure what motor would be the best to use. Thanks for the help, I really do appreciate it.
1- My current motor with forged lower end and c950 ecu
2- My current top end and cam(242/248), but a roller block with 24X conversion because of the timing cover.
3- 383 LT1 with mild port work on either heads and 24X conversion.
4- Something I am missing?
My power goal would be 500-550 rwhp at about 6000 rpm with a fmic and maybe WM injection. Cost wise, the LT1 would be more up front to build, but I could part out my current motor to offset most, if not all of the cost. I just am unsure what motor would be the best to use. Thanks for the help, I really do appreciate it.
10-28-2012, 04:30 PM
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Car: 92 Z28
Engine: Boosted LSX
Re: Novi2000 on 383 HSR or 383 LT1
Drive the car as is and piece the new comb together.
Get a nice little M dart block. or the SHP.
Built the lower end, toss your heads,hrs on it. Keep the c950 setup since ya have it.
24x conversion cost alot plus a good set of lt1 heads . I feel your already ahead of the game with your top and and ecu setup
Hell for your goal you realistacally could just do a factory gm block and be find untll the BOOST bug gets ya and you want to run more. So just get a SHP or Little M now.
Get a nice little M dart block. or the SHP.
Built the lower end, toss your heads,hrs on it. Keep the c950 setup since ya have it.
24x conversion cost alot plus a good set of lt1 heads . I feel your already ahead of the game with your top and and ecu setup
Hell for your goal you realistacally could just do a factory gm block and be find untll the BOOST bug gets ya and you want to run more. So just get a SHP or Little M now.
11-02-2012, 10:00 PM
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Car: 91 Formula
Engine: 350
Transmission: T-56
Axle/Gears: 10 Bolt 3.23
Re: Novi2000 on 383 HSR or 383 LT1
Ditto, you already have a damn good top end with the HSR and dart heads. Run what you have for now and start putting together a forged shortblock.
Get that thing together and post up some pics.
Get that thing together and post up some pics.
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